Strict Obvservance of ritual is, I feel, similar to the stance of the Pharisees who belived that observance of the law was all that was necessary for redemption. In the Catholic church (UK) at the present time, we are being asked to abandon years of music and hymns which we have used at services for over 40 years because they dont adhere strictly to the revised words of the liturgy.
My own feeling is that this is a ploy by the church higherarchy to curtail the power of the laity.
I believe that there are far more important things the Christian churches should be concerned about than adherence to ritual practices and words.